public class Example12_2{
	public static void main (String args[]){
		Thread speakElephant;
		Thread speakCar;
		ElephantTarget elephant;
		CarTarget car;
		elephant =new ElephantTarget();
		car=new CarTarget();
		speakElephant=new Thread(elephant); 
		speakCar=new Thread(car); 
		speakElephant.start();
		speakCar.start();
		for(int i=1;i<=15;i++){
			System.out.print("主人"+i+" ");
		}
		
	}
}


public class ElephantTarget implements Runnable{
	public void run(){
		for (int i=1;i<=20;i++){
			System.out.print("大象"+i+" ");
		}
	}
}

public class CarTarget implements Runnable{
public void run(){
for(int i=1;i<=20;i++){
System.out.print("轿车"+i+" ");
		}
	}
}
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